5-4-6. Forwarding and Filtering

5-4-6-1. IGMP Snooping

The switch supports IP multicasting. You can enable IGMP via the web management’s configuration screen. In addition, you can view different multicast groups, VIDs and member ports, and IP multicast addresses that range from 224.0.0.0 through 239.255.255.255.

The Internet Group Management Protocol (IGMP) is an internal protocol of the Internet Protocol (IP) suite. IP manages multicast traffic by using switches, routers, and hosts that support IGMP. Enabling IGMP allows the ports to detect IGMP queries and report packets and manage IP multicast traffic through the switch. IGMP has three fundamental types of messages.

Message

Description

Query

A message sent from the querier (IGMP router or switch) asking

 

for a response from each host belonging to the multicast group.

Report

A message sent by a host to the querier to indicate that the host

 

wants to be or is a member of a given group indicated in the report

 

message.

Leave

A message sent by a host to the querier to indicate that the host

has quit to be a member of a specific multicast group.

Group

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Milan Technology MIL-SM2401M manual Forwarding and Filtering Igmp Snooping, Message Description Query

MIL-SM2401M specifications

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